From owner-freebsd-hackers@freebsd.org Thu Nov 10 20:59:35 2016 Return-Path: Delivered-To: freebsd-hackers@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 068EEC3A239 for ; Thu, 10 Nov 2016 20:59:35 +0000 (UTC) (envelope-from subbsd@gmail.com) Received: from mail-it0-x231.google.com (mail-it0-x231.google.com [IPv6:2607:f8b0:4001:c0b::231]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (Client CN "smtp.gmail.com", Issuer "Google Internet Authority G2" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id C885FE03; Thu, 10 Nov 2016 20:59:34 +0000 (UTC) (envelope-from subbsd@gmail.com) Received: by mail-it0-x231.google.com with SMTP id q124so68593371itd.1; Thu, 10 Nov 2016 12:59:34 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:from:date:message-id:subject:to; bh=4lRNwk/roIeD8gB9Q3ApjOw8qOtZMqnuklaA6yTqQPw=; b=VYj8a7osZ/Bv2ajg5Bitf45w52jZh+ZxiNV+rluGcW0+w22+gPLVGaNaVelQQHlaUK 4KwmaKUbdhQ1J33XKz4CXSqTS+wEXfbgBD0hf4GyolXEZZDkSGRKtqgvkN/9+vh+9vwG 5g1SkSdSNrzLYMeLXLHHgZ6ahcW9CDfkKCAB51y08gJjqKvH/6IuK2+mxZ4umHVCL0IT dVMD83oxfwmNpBH2TPZ8W/ycVny7DCzhxsIb2HI0M8r7cfcQIdG/4mduZ7GQT9wbOoX2 lX0RZwemSf8sBtegBi2aJRpED1+zR9wpDLafZozRsqO2zA0zcAJsC/tHOazq3U8pUFky MJlA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:mime-version:from:date:message-id:subject:to; bh=4lRNwk/roIeD8gB9Q3ApjOw8qOtZMqnuklaA6yTqQPw=; b=Tc/SjhJfB8Ab+LFJ2Iw6NfwpYV38jwpj8RCfDumscutrEYGmU6LF/+Em/xN7/LARB6 9Ll4wxouF+4K5bdscJV7LwLpFpmyZ09Ip4NIp+ggUma/6GCq5cxROwjrhQOWZo0v9Utp eUdvkkP6BG3zQLmqdpcg6EBcMPTvrNQaMdIMqjBpv8S7ScZ6C/N+2i1+l28UYjrCuAuB URJ4X5bAUdn4sJu7m3FhKzbI5xb43Jaqy0coEF4j9LR4J6vhndtl1FpGr5pYt3gMRzmR Z20lDZqBOPph8XqCRgYKV2YulePJA//hZ5OqQguA8LijVoBy2A643UuM6pGQuolabzQA AQHg== X-Gm-Message-State: ABUngvc4LjnqgrXFVCxgkSbrGv5ngJxsdrUk+AaUrdG7yFosYQRDSBZQ90OO2W7iq/cB5mYjqySllzgc+XAe6w== X-Received: by 10.107.173.195 with SMTP id m64mr8008376ioo.188.1478811573962; Thu, 10 Nov 2016 12:59:33 -0800 (PST) MIME-Version: 1.0 Received: by 10.79.87.67 with HTTP; Thu, 10 Nov 2016 12:59:33 -0800 (PST) From: Subbsd Date: Thu, 10 Nov 2016 23:59:33 +0300 Message-ID: Subject: EFI_STAGING_SIZE - what exactly is limited and trouble with high value To: freebsd-hackers , Will Andrews Content-Type: text/plain; charset=UTF-8 X-BeenThere: freebsd-hackers@freebsd.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Technical Discussions relating to FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 10 Nov 2016 20:59:35 -0000 Hello, After https://lists.freebsd.org/pipermail/svn-src-stable-11/2016-September/000503.html commits and with same reason as https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=209944 ( i have mfs-based images more than ~512M size) , I tried to increase EFI_STAGING_SIZE up to 1024 ( my server have 16 GB RAM ) and got a system hang with follow message: -- Booting ... Start @ 0xffffffff80301000 ... Efi framebuffer information: addr, size 0xe9000000, 0x500000 dimensions 1280 x 1024 stride 1280 masks 0x00ff0000 0x0000ff00, 0x000000ff, 0xff000000 --- If i reduce EFI_STAGING_SIZE to 768, system booted as usual. Can someone explain -- what exactly is limited EFI_STAGING_SIZE in 1GB, which leads boot to freeze ? This is normal ? And why this value can not be dependent from hw.physmem ? We increase EFI_STAGING_SIZE by 16 Megabytes, from 48 to 64, but i'm sure, and some may have more than 64 MB